Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 General Science Chemistry Classification of Elements and Periodicity in Properties
What is the correct order of increasing electronegativity for the following elements ?
Li, Mg, Be, C
1
Li < Mg < Be < C
2
Be < Li < Mg < C
3
Mg < Be < Li < C
4
C < Mg < Li < Be